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84 lines
2.3 KiB
84 lines
2.3 KiB
4 years ago
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#!/bin/bash
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#
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# clang-format-all: a tool to run clang-format on an entire project
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# Copyright (C) 2016 Evan Klitzke <evan@eklitzke.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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function usage {
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echo "Usage: $0 DIR..."
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exit 1
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}
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if [ $# -eq 0 ]; then
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usage
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fi
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# Variable that will hold the name of the clang-format command
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FMT=""
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# Some distros just call it clang-format. Others (e.g. Ubuntu) are insistent
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# that the version number be part of the command. We prefer clang-format if
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# that's present, otherwise we work backwards from highest version to lowest
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# version.
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for clangfmt in clang-format{,-{4,3}.{9,8,7,6,5,4,3,2,1,0}}; do
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if which "$clangfmt" &>/dev/null; then
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FMT="$clangfmt"
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break
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fi
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done
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# Check if we found a working clang-format
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if [ -z "$FMT" ]; then
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echo "failed to find clang-format"
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exit 1
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fi
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# Check all of the arguments first to make sure they're all directories
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for dir in "$@"; do
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if [ ! -d "${dir}" ]; then
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echo "${dir} is not a directory"
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usage
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fi
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done
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# Find a dominating file, starting from a given directory and going up.
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find-dominating-file() {
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if [ -r "$1"/"$2" ]; then
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return 0
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fi
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if [ "$1" = "/" ]; then
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return 1
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fi
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find-dominating-file "$(realpath "$1"/..)" "$2"
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return $?
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}
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# Run clang-format -i on all of the things
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for dir in "$@"; do
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pushd "${dir}" &>/dev/null
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if ! find-dominating-file . .clang-format; then
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echo "Failed to find dominating .clang-format starting at $PWD"
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continue
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fi
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find . \
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\( -name '*.c' \
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-o -name '*.cc' \
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-o -name '*.cpp' \
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-o -name '*.h' \
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-o -name '*.hh' \
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-o -name '*.hpp' \) \
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-exec "${FMT}" -i '{}' \;
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popd &>/dev/null
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done
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